<!-- 父级页面：控制除登录页面以外所有页面共有的左侧菜单栏与顶部条 -->
<template>
  <!-- 除了登录页面的所有父级页面 公共的 -->
  <!-- display: flex;  横置 父类元素不会失高 -->
  <div style="display: flex;">
    <div :style="{width:(isCollapse ? '64px':'208px')}">
      <el-menu background-color="#3c82f5"
               style="width: 100%;height: 100%;"
               text-color="#fff"
               :collapse="isCollapse"
               router
               unique-opened
               :collapse-transition="false"
      >
        <el-row style="padding-top: 10px;">
          <el-col :span="2"></el-col>
          <el-col :span="7" style="padding-left: 7px;">
            <el-avatar src="/imgs/admin/logo.png" style="width: 35px;height: 35px;"></el-avatar>
          </el-col>
          <el-col :span="isCollapse  ? 0 : 13">
            <span style="color:#fff;font-weight: bold;position: relative;top:8px;left:2px;">智慧车辆</span>
          </el-col>
        </el-row>
        <el-sub-menu index="1">
          <template #title>
            <el-icon style="font-size: 21px"><User/></el-icon><span>用户管理</span>
          </template>
          <el-menu-item index="/user">用户列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="2">
          <template #title>
            <el-icon style="font-size: 21px"><Van/></el-icon><span>车辆管理</span>
          </template>
          <el-menu-item index="/vehicle">车辆列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="3">
          <template #title>
            <el-icon style="font-size: 21px"><Location/></el-icon><span>围栏管理</span>
          </template>
          <el-menu-item index="/geofence">围栏列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="4">
          <template #title>
            <el-icon style="font-size: 21px"><Place/></el-icon><span>调度管理</span>
          </template>
          <el-menu-item index="/application">申请列表</el-menu-item>
          <el-menu-item index="/audit">审批列表</el-menu-item>
          <el-menu-item index="/distribute">车辆分配</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="5">
          <template #title>
            <el-icon style="font-size: 21px;"><MessageBox/></el-icon><span>数据字典</span>
          </template>
          <el-menu-item index="/dict">字典列表</el-menu-item>
        </el-sub-menu>
      </el-menu>
    </div>
    <div :style="{width:(isCollapse ?'calc(100% - 64px)':'calc(100% - 208px)')}">
      <el-header style="height: 10vh;background-color: #fff;padding-top: 22px;">
        <el-row :gutter="10">
          <el-col :span="18">
            <el-icon style="font-size:20px;" @click="ChangeCollapse"><Expand/></el-icon>
          </el-col>
          <el-col :span="6">
            <el-dropdown trigger="click" style="position: absolute;right: 20px;">
              <span style="=font-style:19px;font-weight: bold;">
                {{user.username}}<el-icon><arrow-down/></el-icon>
              </span>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item @click="logout">退出登录</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
          </el-col>
        </el-row>
          <el-breadcrumb separator="/" style="position: relative;top: 20px;">
            <el-breadcrumb-item>首页</el-breadcrumb-item>
            <el-breadcrumb-item v-for="item in breadcrumb">{{item}}</el-breadcrumb-item>
          </el-breadcrumb>
      </el-header>
      <el-main style="height: 90vh;padding: 0;overflow-y: auto;">
        <router-view/>
      </el-main>
    </div>
  </div>
</template>

<script setup>
import {onMounted, ref} from "vue";
import {useRoute, useRouter} from "vue-router";

const isCollapse=ref(false);
const ChangeCollapse=()=>{
  isCollapse.value=!isCollapse.value;
}
const user=ref(getUser());
const logout=()=>{
  if(confirm("确定退出登录吗？")){
    localStorage.removeItem('user');
    window.location.href='/login';
    user.value='';
  }
}
let map={
  '/user':['用户管理','用户列表'],
  '/vehicle':['车辆管理','车辆列表'],
  '/geofence':['围栏管理','电子围栏'],
  '/application':['调度管理','申请列表'],
  '/audit':['调度管理','调度审核'],
  '/distribute':['调度管理','车辆分配'],
  '/dict':['字典管理','字典列表'],
  '/geofenceMap':['围栏管理','围栏绘制']
}
//一进入页面立即加载的函数,只有第一次进入页面才会触发(刷新页面)
onMounted(()=>{
  updateBreadcrumb(route);
})
const breadcrumb=ref([]);
const route=useRoute();
onMounted(()=>{
  updateBreadcrumb(route);
})
const updateBreadcrumb=(route)=>{
 const path=route.path;
 breadcrumb.value=map[path];
 console.log(breadcrumb.value);
}
const router=useRouter();
router.beforeEach((to,from,next)=>{
  updateBreadcrumb(to);
  next();
})
</script>
